The scan function in Windows Fax & Scan doesn't work. The dialog opens, but clicking on scan..nothing happens. I am using professional. I have another Win 7 computer on the same network using Win7 Home edition that does work properly. I am using a new HP all-in-one on a wireless network. I would normally use the HP software, but it seems to me that the problem might be a problem with a windows driver. (I didn't have this problem for the first 3 months I had this HP unit).